#container {
    position: relative;
}

.canvasoverlays {
    position: absolute;
}

.handle {
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: rgba(255,255,255,0.5);
    border: 1px solid rgba(0,0,0,0.5);
    user-select: none;
}

.handle#tr {
    margin-left: -20px;
}

.handle#t, .handle#b {
    margin-left: -10px;
}

.handle#r, .handle#l {
    margin-top: -10px;
}

.handle#br {
    margin-left: -20px;
    margin-top: -20px;
}

.handle#bl {
    margin-top: -20px;
}
